var highlightcolor = '#c1ebff';
// �˴�clickcolorֻ����winϵͳ��ɫ������ܳɹ�,�����#xxxxxx�Ĵ���Ͳ���,��û�����Ϊʲô:(
var clickcolor = '#51b2f6';
function changeto() {
	source = event.srcElement;
	if (source.tagName == "TR" || source.tagName == "TABLE")
		return;
	while (source.tagName != "TD")
		source = source.parentElement;
	source = source.parentElement;
	cs = source.children;
	// alert(cs.length);
	if (cs[1].style.backgroundColor != highlightcolor && source.id != "nc"
			&& cs[1].style.backgroundColor != clickcolor)
		for (i = 0; i < cs.length; i++) {
			cs[i].style.backgroundColor = highlightcolor;
		}
}

function changeback() {
	if (event.fromElement.contains(event.toElement)
			|| source.contains(event.toElement) || source.id == "nc")
		return
	if (event.toElement != source && cs[1].style.backgroundColor != clickcolor)
		// source.style.backgroundColor=originalcolor
		for (i = 0; i < cs.length; i++) {
			cs[i].style.backgroundColor = "#efefef";
		}
}

function clickto() {
	source = event.srcElement;
	if (source.tagName == "TR" || source.tagName == "TABLE")
		return;
	while (source.tagName != "TD")
		source = source.parentElement;
	source = source.parentElement;
	cs = source.children;
	// alert(cs.length);
	if (cs[1].style.backgroundColor != clickcolor && source.id != "nc")
		for (i = 0; i < cs.length; i++) {
			cs[i].style.backgroundColor = clickcolor;
		}
	else
		for (i = 0; i < cs.length; i++) {
			cs[i].style.backgroundColor = "";
		}
}